The present invention relates to a silk nanofiber nerve conduit characterized in that fibroin nanofibers having a diameter of 200 to 400 nm, originated from silk fiber, are stacked layer upon layer to form a porous conduit-shape and a method for producing thereof, more specifically, to a method for producing a silk nanofiber nerve conduit comprising: (Step 1) preparing a fibrous spinning solution (Step 2) producing a silk nanofiber of conduit-shape by electrospinning the fibrous spinning solution prepared in step 1 into the cylindrical collecting part coated with polyethyleneoxide and (Step 3) separating a silk nanofiber of conduit-shape produced in step 2 from the collecting part. The silk nanofiber nerve conduit of the present invention has excellent biocompatibility allows the body fluid to be exchanged inter in and out of conduit through pores of the conduit, as well has a proper elasticity, tensile strength, and tear strength. Due to these properties, the silk nanofiber nerve conduit of the present invention helps the regeneration of the nerve injury to recover a motor skill and a sensory function, and thus shows an excellent effect of nerve regeneration. Therefore, the silk nanofiber nerve conduit of the present invention can be used in treating a nerve injury instead of an existing synthetic polymeric nerve conduit.